3 Preface This report contains summaries of project management articles published in international scientific journals and conferences. The summaries were written as a compulsory task for the TIETS19 Software Project Management, Theory and Practice Theory course held spring The summaries were written in English or in Finnish. The summaries are not in any specific order; only English language summaries are first. All summaries have three sections: Introduction, Results and Conclusions. Timo Poranen Tampere, August 2013 i

4 Preface...i An Approach for Modeling Architectural Design Rules in UML and its Application to Embedded Software...1 Challenges with Software Verification and Validation Activities in the Space Industry...3 Interpretative Case Studies on Agile Team Productivity and Management...5 Interpreting an ERP-implementation Project From a Stakeholder Perspective 8 How Do Top Managers Support Strategic Information System Projects and Why Do They Sometimes Withhold This Support?...10 Project Scheduling With Limited Resources Using a Genetic Algorithm...12 Building Theories of Project Management: Past Research, Questions for the Future...14 The Strength and Weakness of Requirement Engineering (RE) Process...16 Factors Associated with the Software Development Agility of Successful Projects...19 Requirements Engineering and Agile Software Development...21 Improving Test Efficiency Through System Test Prioritization...24 Agile Project Management in Product Design...26 Successful Extreme Programming: Fidelity to the Methodology or Good Teamworking?...29 A Project Manager s Optimism and Stress Management and IT Project Success...31 Professionalization, Risk Transfer, and the Effect on Gender Gap in Project Management...33 To Bridge or to Bond? Diverse Social Connections in an IS Project Team...35 Acquiring and Sharing Tacit Knowledge in Software Development Teams: An Empirical Study...37 Project managers in Global Software Development Teams: a Study of the Effects on Productivity and Performance...39 Managing Projects in a Games Factory: Temporality and Practices...41 Distributed Agile: Project Management in a Global Environment...43 The Scrum Software Development Process for Small Teams...45 An Investigation into Agile Methods in Embedded Systems Development...48 Task Coordination in an Agile Distributed Software Development Environment...50 Opening Up to Agile Games Development...52 ii

5 An Approach for Modeling Architectural Design Rules in UML and its Application to Embedded Software A. Mattsson, B. Fitzgerald, B. Lundell, and B. Lings, ACM Transactions on Software Engineering and Methodology, volume 21, number 2, article 10, 2012 Background An important phase in software development is the design of the software architecture. For this purpose, the high-level structure is presented as a set of components and interfaces; also a set of architectural design rules for infrastructure usage is defined. Currently, these rules are expressed informally and reviewed manually, which is an error-prone and time-consuming work. A current suggestion for modelling design rules is to express them in a textual form and to address them to the resulting design, but this approach is not sufficient in cases when actual elements are not known yet. In addition, this approach becomes a bottleneck in a project where other processes have been automated. Other formal approaches such as predicate logic, set theory and UML at the meta-model level have been proposed. In cases when architectural design rules are used to constraint the detailed design which is made using UML, the usage of UML must be restricted by those rules. However, they are not easy to understand and to use by both architect and developers because it requires more extensive knowledge about UML and OCL expressions become quite complex. Considering this, a more intuitive approach was needed, that will be easier to understand and to model, it will not require any knowledge about UML meta-model and it will be enough automated. Results The approach developed in this work is based on the purpose of achieving the objectives mentioned in the background part, i.e. developing design rules using UML, making it enough automated and usable in a real-life development project. A literature review, focused on the role of architectural design rules, was performed to achieve the first objective. For the second objective a tool that automatically checks the correctness of architectural rules was developed. To achieve the third objective, architectural rules of an existing system were modelled according to the newly developed approach. The developed approach is using a set of transformations from model constructs to a UML profile. The set contains seven transformations, which are as follows: 1. A class with a stereotype is transformed into a new stereotype with the metaclass of the old stereotype extended, unless the second transformation applies. 2. If there is a metaclass, then there is already a class representing the language metamodel and is not transformed into anything. 3. If there is a role in the metamodel on the far end of an association of two metaclasses, then the multiplicity of the role for an element of the second metaclass stereotype shall be constrained to the multiplicity in the first stereotype. 4. If an attribute matches an attribute of class stereotype in the metamodel, then it is transformed into a constrained on that attribute 1

6 5. If for the attribute no matches were found in the class stereotype, then it is transformed into a stereotype attribute. 6. Any constraint of a class is copied to architectural rules profile, considering the class stereotype. 7. A generalization relationship from two classes is transformed into a generalization from the second class stereotype to the first class stereotype in the architectural rules profile. This set of transformation is general and complete, but because it is still too complex to use, an additional UML-specific transformation set was defined. The purpose of the additional set is to override the main, in case when both of them apply. To achieve the goal about making the architectural rules enforcement automating, a tool and a new method were developed. The tool is built in C++ and the model reader component is independent from other tool s parts, but is limited in reading models (currently, only Rhapsody model). In order to prove that the developed approach is applicable to a real-life project, the architectural design rules of an existing system were successfully modelled according the transformation set proposed. Conclusions As an important part of software architecture, designing architectural rules needs an approach to allow design automation, UML usage without extended knowledge about UML metamodel and real-life project applicability is needed. All these objectives were achieved in this work by developing a new approach to modelling architectural design rules. To allow automation, a tool was developed, which is used for Rhapsody modelling. The tool consumes approximately 200 man-hours, which is considered to be a relatively small task. In order to test the applicability, the approach was applied to an existing system, for which from the total 66 rules only eight could not be modelled because of their judgemental character. In addition, the developed approach is easy to use and understand by architects and developers, because it allows the rule to be modelled at an abstraction level close to the rules modelled. Iulia Adomnita 2

7 Challenges with Software Verification and Validation Activities in the Space Industry R. Feldt, R. Torkar, E. Ahmad, and B. Raza, in Proceedings of Third International Conference on Software Testing, Verification and Validation (ICST), pages , 2010 Background Space related systems and applications need to be highly-reliable. The industry has to follow a set of particular standards and prescribes engineering processes and methods in order to achieve such a desirable quality. One of the standards associated with space systems is European Cooperation for Space Standardization (ECSS) which is the focus of this paper. ECSS is analyzed and evaluated, based on two sample companies which are applying those standards in their validation and verification activities (VVA), if its standards are costeffective and suggest probable ways to make it more efficient without losing quality. This paper contributes to the current challenge in three different ways. Firstly, it analyzes the identified and prioritized challenges in VVAs of different organizations in the space industry. Secondly, it evaluates the effects of ECSS on those VVAs and last but not the least, comes up with a proposal solution for existing challenge concerning V&V processes and their usage in the space industry. Results The study started with initial investigation that conducted using a web-based survey, an indepth review of documents at the two sample companies- SSC and RUAG- in order to gather information regarding: a description of processes, software tools used, common defect types, defect detection techniques and also techniques to combine different VVAs. In the next step, a connection between current defects and VVAs, current challenges and issues in V&V (verification and validation) processes and also effect of ECSS in addition to identification of solutions are evaluated. Finally, evaluation of solutions was conducted using questionnaires and informal discussions with V&V experts in the companies. The questionnaires divided to four main themes that surveys respondents in terms of their understanding of ECSS standards, effectiveness of V&Vs, efforts required for different VVAs, and change in a particular VVA if ECSS is not relevant. For example, for the first theme, knowledge distribution of ECSS among both companies is identical or for the second theme, for RUAG the most effective VVAs are considered to be code review, whereas for SSC unit testing is considered to be more effective. Also for the third theme, For RUAG, validation testing and system testing requires more effort compared to other VVAs, whereas for SSC it is system testing. Regarding ECSS issues, the challenges and issues in Table 1 were identified during the two case studies. The empty cells indicate that it was not an issue or challenge for that particular company. For instance, taking knowledge from the table, at SSC the ECSS knowledge is unevenly distributed between individuals (p. 5) or taking inflexibility, at RUAG they find it hard to make changes to requirements during an ECSS project (p. 5). 3

8 Table1: Challenges and issues related to ECSS standards. Regarding VAVs issues, the challenges and issues in Table 2 were identified. Table2: Challenges and issues related to VAVs standards. Conclusions Based on identified issues and challenges recommendations were proposed in order to address the mentioned issues. Suggested recommendations include: Clarify reuse of artifacts and VVAs. Evaluate cost effectiveness. Allow alternative processes and consider simpler/quicker ways for process evolution to occur. Clarify relationship and motivate differences between ECSS and other common standards. Develop lightweight ECSS training material. Ensure the standard is primarily goal-driven. Clarify explicitly for big trends, e.g. model driven development, how they can be incorporated. To sum up, in this study a variety of research methods namely, combination of questionnaires, document analysis and interviews were conducted in order to distinguish root causes of existing challenges in ECSS standards. Possible ways to address current issues in ECSS standards were introduced. Reza Ahmadi 4

9 Interpretative Case Studies on Agile Team Productivity and Management C. de O. Melo, D. S. Cruzes, F. Kon, R. Conradi, Information and Software Technology, volume 55, issue 3, pages , 2013 Background A large amount of research has been conducted in Agile methodologies leading to potential improved productivity, shortening development time, and reaction times to market changes in the field of software development. It is accepted that industry has adopted Agile methods. Research has been extensively carried out to identify factors that contribute and influence productivity in software development. There are four main factors generally discussed. The product being developed (Characterization of the specific software), People (team members capabilities, experience, motivation), Project (management and resourcing), and processes (tools and software methods). This paper reports that little empirical evidence is known to be available to support this research. Using empirical evidence future research can be focused to those critical areas that will cause most productivity gains, and financial impacts. This paper outlines a detailed industrial case study on three companies over a period of 6 months to answer the question Which factors do have impact, and in what way, on team productivity when using agile methods?. Research has shown that team composition & allocation, external dependencies, and staff turnover are the main influences on Team Productivity. To answer the question the authors conducted this extensive study formulating first a thematic map. They compared this with their conceptual framework for agile development productivity. From this the conceptual framework is improved and more detailed reasoning provided based on the empirical results along with agile team productivity and management factors. Productivity is controversial and varies due to context. There is no general consensus on measurement of software productivity for this reason. For this study the authors define productivity using team perception to quantify team productivity as a common measurement across the three companies. Results The research model chosen is started with Input-Process-Output (IPO) teamwork effective frameworks. IPO is a well known generic model in software development which has more recently been adopted for teamwork effectiveness and conceptual framework modeling for quantitative and qualitative studies. Initially a conceptual framework is proposed based on this IPO model where inputs, process and outputs are based on the agile principles. Figure 1, page 414. Inputs used are Individual group characteristics, Stage of team development, Nature of task, Organizational context, Supervisory behaviors. Outcomes are Agile Productivity, Attitude and Behavioral. Group processes are Internal and External. Note that Inputs directly, or indirectly via group processes, drive the outcomes as shown in this conceptual framework. A multiple case study was conducted for six months based on three companies in Brazil. Selection criteria for Companies chosen was that they have used agile methods for at least 2 years, Projects in place for at least 6 months with at least 4 workers co-located, along with each business in different segments and geographical location. The length of the study was chosen to be six months to remove or identify productivity factors over time. 5

10 Company 1 provides financial systems, uses XP/Scrum and has one week cycles, employs 400 people and has 33% staff turnover. Company 2 provides E-Commerce, uses XP/Scrum/Lean principles and has 3 or 4 week cycles, employs 120 people and has 40% staff turnover. Company 3 is an Internet content provider, uses Scrum/XP/Lean principles and 3 week cycles, employs 200 people, and has 35.3% staff turnover. Table 3, page 419, further details the degree of adoption of agile methods in detail within each company. The data collected was retrospective document analysis, semi-structured Interviews and nonparticipant direct observation field studies. Interviews were conducted by an author experienced in requirements elicitation and interviewing techniques. Interviews lasted one hour and were recorded. Interviewees were informed of the importance of the study, and included developers, project managers, product owners with differing experiences. No details were given to bias their information. Appendix A, page 425 gives the interview guide. Questions ranged from motivational, to influencing factors on productivity, and how the team operates. Non-participative observation protocol is given in Appendix B, page 425. It outlines the questions the observers should consider and frequency they should be examined. The observational protocol questions were designed to detect factors in every day practices that effect productivity of the team. Analysis first consists of constructing a thematic map, often used in qualitative data to identify, analyze and report themed information. The thematic map shown in Fig4, page 417, identifies three themes. Inter-team coordination, Team member turnover, and Team design choices along with reasoning. At a later stage further information is added regarding impacts affecting these themes and whether they have positive or negative impact. The thematic map findings were discussed and reported using the conceptual framework. With this combination the thematic maps limited interpretive power and the frameworks ability to provide clarity and focus the research claims are better extended and communicated for discussion. Team member turnover is a productivity factor producing cost in separation, advertising and recruiting, The relevance to this research is the team productivity is affected until the team member is integrated and up to speed, and loss of effective contributors when someone leaves. There was a positive side found when new members contribute new ideas and experience to the team. These positive and negative effects were clearly identified in interviews and retrospectives from the companies. Team Design Choices affects productivity. This research identified desirable team attributes as full time allocation, diversity, skills, team size, co-location. Interviews identified that experienced and less experienced members provide more cohesion and flexibility, less conflicts. Small team size was found to improve communication and alignment, responsibility and commitment. Bigger teams have more communication and conflict resolution, more people to understand and align to the big picture. Social interaction of colocation improved communication and removed boundaries within hierarchical organized companies. Workspace layout considering desk positions and proximity also affected how well co-location worked. Although considerable influence is exerted by team design choices, most of the decisions are made by people outside the team, or their control. Inter-team coordination affected productivity due to shared resources, prerequisite constraints, simultaneity constraints, relationships of tasks and sub tasks dependencies between teams. Inter-team coordination processes are then needed to manage these dependencies. Examples of inter-team dependencies found were external customers, QA, releasing, testing, integration, production, reuse of components under development or maintained in other teams. All three companies in interviews and retrospectives identified impediments waiting for resolution by external dependencies like this. Some teams owning components to be reused were not committed to the same goal, only the to the task to be completed. Other dependencies working on different schedules, like QA and integration. 6

11 Roles were identified as being used to influence and enforce practices and choices on teams. An example used was an administrator using their role to tell the team how to proceed in administrator activities, yet not belonging to the team or committing to the same goals. In further discussion the influencing factors for team productivity are further explored. Productivity was particularly sensitive to team management. Agile teams take responsibility for managing their own work and behavior, yet others usually make decision about goals, team structure and organizational support. Revision and extension of the conceptual framework during discussions was made. Figure 6, page 421, identified specifically staff turnover and effects on the agile team productivity using IPO, now including positive or negative contribution to the productivity. Figure 7, page 421, identified specifically the team design choice factors and effects on agile team productivity. Whilst Fig 8, page 422, identified specifically Inter-team coordination factors and effects on agile team productivity. An extensive and more in depth elaboration is given for the working and reasoning of these drawing from the data that has been studied. The limitations of this study are well thought out and explained. Every effort was made to give correct finding and remove bais and false information.credibility was promoted using well known and established techniques. Confirmability was ensured using multiple researchers working through the data. Dependability was ensured audit trail and traceability. Transferability was ensured by full disclosure of context settings, data extraction, synthesis processes used. Conclusions A detailed multi-case study has been given based on empirical research to find Which factors do have impact, and in what way, on team productivity when using agile methods?. This is a very rich paper about effects on team productivity, which should be recommended to read for anyone running agile teams, and form a basis for further empirical research. Major factors identified are Team member turnover, Team Design Choices affects productivity, Inter-team coordination productivity. The conceptual model initially given has been further detailed in three individual conceptual models for each of those contributing factors and how they effect productivity which are soundly backed up by the research data. Future research could be directed to give guides for managers and organizations setting up agile teams as they play such an important factor outside the control of the teams themselves. Multiple team dependency management has been identified as a performance hit for many years as well as highlighted in this research. Dean Leffingwell was quoted and has a book defining how larger organizations can use agile release trains to synchronize multiple team releases. This paper showed the problems due to asynchronous release cycles. It would be good to compare teams following Dean Leffingwell's suggestion of the agile release train for bigger organizations as a comparison solution for the issues highlighted here. An example is Nokia, which has implemented this synchronous Agile release trains and similar problems existed, but a proper study would be invaluable to extend this area and compare with the results found here. This study was Brazilian companies. Although I believe this would be representative, a further study in different cultures would further solidify findings to remove any cultural influences that may affect productivity, for example was it the agile practices and people fitting into the team that was accounting for high turnover. Or is this a cultural factor which is influencing productivity but normal in these situations and not because of the agile team setup? Andrew Cox 7

12 Interpreting an ERP-implementation Project From a Stakeholder Perspective A. Boonstra, International Journal of Project Management, volume 24, issue 1, pages 38-52, 2006 Background ERP systems are sets of integrated applications that can provide a total solution to an organisation s information system needs by addressing a large proportion of business functions including financial, accounting, human resources, supply chain and customer information. They support a process-oriented view of the business as well as business processes standardised across the enterprise (Shehab, Sharp, Supramaniam, & Spedding, Business Process Management Journal, volume 10, issue 4, pages , 2004). This article aims to uncover some important dimensions of the organisational change issues around ERP-implementation projects by focusing on how ERP-implementation can impact the interests of stakeholders around the ERP system and how these groups may react by trying to influence the course of events and to alter the design in ways that are more consistent (p. 38). Results The study shows how the outcome of ERP-implementation can be affected by the meaning, which various stakeholders attach to such systems, and by the actions they take throughout the project. Stakeholders possess one or more of three relationship attributes: Power, Urgency and Legitimacy. Combining these attributes generates eight types of stakeholders (p ): 1. Dormant stakeholders possess the power to impose their will on a firm but, by not having a legitimate relationship or an urgent claim, their power remains unused. 2. Discretionary stakeholders possess legitimacy, but have no power for influencing the firm and no urgent claims. There is no pressure to engage in a relation-ship with a stakeholder. 3. Demanding stakeholders exist where the sole stake-holder relationship attribute is urgency: those with urgent claims, but having neither legitimacy nor power. 4. Dominant stakeholders are both powerful and legitimate. Their influence in the relationship is assured, since by possessing power and legitimacy they form the dominant coalition. 5. Dependent stakeholders are characterised by a lack of power, but have urgent and legitimate claims. These stakeholders depend on others to carry out their will. Power in this relationship is not reciprocal and is advocated through the values of others. 6. Dangerous stakeholders possess urgency and power but not legitimacy and may be coercive or dangerous. The use of coercive power often accompanies illegitimate status. 7. Definitive stakeholders possess power legitimacy and urgency. Any stakeholder can become definitive by acquiring the missing attributes. 8. Non-stakeholders possess none o f the attributes and, thus, do not have any type of relationship with the group, organisation or project. 8

13 The literature referred to a single case study that was focused to trace the dynamic nature of stakeholder behaviour (p. 41) and unfolding of ERP Implementation process. The study tried to identify different sets of stakeholders, interpretation of technology by the stakeholders, affect of ERP implementation on the interests of the stakeholders and influence on the implementation process. The research shows that implementation of ERP is a socially, politically and technically complex under-taking that influences nearly every aspect of organisational functioning and thus affects the interests of many different stakeholders during the various stages of the project. ERP-systems are building blocks of organisational strategy. This means that ERPimplementations resemble the nature of the strategy processes, which often have emergent and adaptive characteristics rather than planned. Changes in the external environment, the emergence of new opportunities, and other unanticipated events make departure from initial ideas often inevitable (p. 50). Different stakeholders can interpret ERP-systems in different ways, given their own histories, interests, self-images, prospects and views. Some groups perceive the system as a means to realise certain new company wide objectives, while others see the system as a way to regain lost power or as a threat to legitimate local interests (p. 49). ERP-implementation is a dynamic process, which means that views, which are held by the stakeholders at one point in time, may change during the project. This may depend on various reasons, including cognitive, political and opportunistic ones (p. 50). Conclusions ERP-projects is a complex cock-tail of rational assessment mixed with various perceptions, quests for power, leadership and subtle processes to gain support for further progress of the project (p. 50). ERP-implementations challenge vested interests, and lead to opposing views from various players. Implementation includes multi level activities, which are not the exclusive area of a single project manager (p. 50). Moreover, good project management of ERP-projects goes far beyond the technical implementation of the system. ERP-implementation can be perceived as an organisational change project and should be managed accordingly. Different stakeholders may change their roles during the project. Establishing more stable structures where members of senior management play a role, also during the implementation phase, may support the realisation of the initial project goals. Project managers should be aware of this and stimulate top management presence (p. 51). Eashan Salhotra 9

14 How Do Top Managers Support Strategic Information System Projects and Why Do They Sometimes Withhold This Support? Albert Boonstra, International Journal of Project Management, volume 31, issue 4, pages , 2013 Background It is generally agreed that the support of top management in strategic information system projects is an important success factor. The relationship between IS projects success and top management support is quite a studied subject, but there is only little reliable knowledge about the types of behavior top management support contains. In prior studies top management support has been treated as a single construct, something that can be given or withheld. The paper of Albert Boonstra, however focuses on the concept of top management support. There are three main questions the research aims to answer: "1) What behavioral types are associated with top management support for strategic IS projects? 2) How can these behaviors be placed in a coherent framework? and 3) Why do managers sometimes withhold these types of support?" (p. 501). Results In the paper the author introduces a framework of top management support behavior types and aims. The framework is developed by using a multiple case study design. The research involved five case studies of IS implementation projects. All of the projects were companywide, involving multiple business units or integrating IT systems, strategic in nature and complicating in terms of duration, budget and user groups. All companies had several levels of management and their IS project already in the roll-out phase. Organizations and projects involved in the case studies were as follows: an ERP project of a manufacturer, aiming at aligning the companies systems' with the business strategy of the company; a CRM implementation project of a large financial service provider, aiming at improving customer service and including a vast number of employees in more than 100 local branches; an ERP integration project of a dairy food company, aiming at integrating the company's numerous IT systems; an e-government project of a city council, aiming at providing e-services for the residents of the city; and a electronic he alt record integration project of a hospital, aiming at integrating 24 different electronic patient record systems inside the organization. The research team prepared the interview questions by first studying other research models and theories on the topic and familiarizing with the case study organizations and projects through other data sources, such as observations and internal project documentation. In addition to the representative of the organization's top management, other project members, such as business managers, project managers and workers, were also interviewed. An average of 7 interviews was made in each organizations with an average of 5 organization members. Based on previous research literature and the research material, five top management behavioral categories were identified. These categories were used to classify the supportive top management behaviors identified during the research. The five categories were: 1. resource management of financial, material and human resources, 2. establishing and 10

15 enforcing of the IS project's and organizational structures, 3. enthusiastic communication about the project, 4. sufficient knowledge regarding the management and content of the project, and 5. using of the power to resolve possible conflicts and to protect the project team. The framework for top management support also includes four agendas that different types of behavior aim at. These agendas were "Accommodating the implementation project", "Reshaping organizational context", "Adapting the IS to the organization" and "Dealing with stakeholders" (p. 503). When combining the aim with the category as a result the research introduced a framework with total of 20 definitions of top management support behavior types, and then analyzed how many of each support behavior type was detected in each IS project. Cross-case analysis revealed variance in overall top management support in the case study projects. But also the perceived adequacy of top management support variated. The support of top management was perceived adequate when "the overall amount given by the top management matches the perceived amount needed" (p. 508). The amount and type of support needed fluctuated in different stages of the project. To answer the last of the three questions about the reasons why top management withholds supports, the researchers found out that top management struggled with the capabilities to give support: there was not enough expertise, resources nor time. Another reason was the ever changing goals and context of the IS project. It is hard to give support to a project if it starts to look like a failure. And the disagreement among other top managers of the right support type was also seen as a possible reason for a low level of support. Conclusions The main conclusion of the research seamed to be that "the top management support is a context-dependent balancing act involving several types of support, with various intensities, aimed at a range of goals which may change over time" (p. 509). The flexibility of top managers in how, when and at what intensity they give their support was seen as one of the key issues. As well as understanding that different kinds of IS projects in different kinds of environments have different needs when it comes to top management support. There is no one-and-only right way to act. Siiri Tammisto 11

16 Project Scheduling With Limited Resources Using a Genetic Algorithm J. R. Montoya-Torres, E. Gutierrez-Franco, C. Pirachicán-Mayorga, International Journal of Project Management volume 28, issue 6, pages , 2010 Background The article is focused on solving a Resource-Constrained Project Scheduling Problem (RCPSP) with a certain kind of genetic algorithm. In earlier project scheduling models taking the resource constrictions in all levels in mind were not taken to count in the algorithm, but were the responsibility of the project manager to take in mind differently in all parts of the project. The current approach handled in this research is based on the idea of taking resource restrictions in mind in project management with efficient scheduling based on object oriented programming model. The object orientation allows the project to be cut into instances based on the concept of activity list. These instances can also be seen as chromosomes of the project which can create evolution in project due to certain kinds of mutations. The mutation is based on crossover of two instance nodes. The start and ending nodes are time valued for 0 and therefore can be called as dummy nodes. Genetic algorithm is based on simulating the real evolution methods inside a software project. Evolution strategy is based on selecting the best individual node or individuals and then uses it or them to generate a set of new individuals in the next generation. In a project based on such algorithm there would be constant evolution and progress to some direction in the project considering the scheduling the object orientation in programming issues and resource management (as the algorithm takes the available resources in count). Results The algorithm discussed to be genetic that was used in this article was programmed with Java. Computational experiments were ran on the algorithm. The experiments were experimental on their nature. The goal of the experiments was to count the crossover probability and mutation probability with certain amount of individual values, the amount was either 100 or 150. Over 2400 instances were used. Also the algorithm was compared with other state of the art algorithms previously used in scientific literature. From the researches referred to only other algorithms based on the genetic approach were taken for evaluation. The tables in the article show that there was sufficient enough results by the algorithm. Though the solution value never was greater than 10% and when the amount of individuals was raised from 100 to 150 the differences with previous experiments with other similar algorithms decreased. Taken in count in the computational progress there was also a fitness function involved to define the optimality of chromosomes of the certain individual taken account. The fitness function was based on the idea of evolution strategy and supports the idea of mutation. Though low values seemed to give more valuable results towards empirical studies around the topic. The result bound conclusion proposed that is not possible to find actually any groundbreaking optimal solutions for instances of higher value in node quantity in reasonable computational time. Conclusions The research is again only one computational and object oriented programming based 12

17 approach in creating a genetic algorithm for organizing efficient project scheduling. The results are not groundbreaking but they were encouraging for the research team according to the article. Their further research will include non-renewable resources and other objective functions to include activity costs. In connection to this I might appoint some criticism towards the article that these issues were not handled clear enough in the begging of the article in my point that which kind of resources and costs the researched algorithm in fact was able to handle, but of course it is understandable that when talking chromosome level in any topic the perfection must be built in levels and new features will always be added due to evolution, not just in the algorithm but also in the research. Maybe a right algorithm eventually would solve core problems in resource-constrained project scheduling as evolution in earth has created a species such as humankind to solve some problems that the previous primates were not able to solve, but maybe it could be arguable if this is all just based on computation, but this is just my opinion. I would say that good scheduling is more up to good humanistic management not just calculated results. Mikko Myllylä 13

18 Building Theories of Project Management: Past Research, Questions for the Future J. Söderlund, International Journal of Project Management, volume 22, pages , 2004 Background The field of project management has been an issue of controversial debate over past decades. The aim of this discussion is to promote the standardization and certification programs for project managers. To the day several institutions and associations have been established with prime goal of bringing professionals together and creating an effective network. The members of these networks come from various disciplines such as psychology, pedagogy, business administration, organization theory, industrial engineering and sociology. Despite the rapid development seen in recent years the field of project management has been blamed for too narrow focus and almost an entire lack of empirical studies. Project management researches have been accused for being too focused on studying the reasons for success and failure of projects instead of examining the big picture. As a result many important questions that are at the core have not been addressed properly. The diversity of the field of project management introduces many challenges that need to be tackled. While increasing the complexity of the field the multidisciplinary nature of project management also complicates an agreement on fundamental ideas of project management research. The aim of the original paper of this summary is to raise a discussion and debate about some fundamental theoretical issues related to project management research. There are two major lines in project management field to follow. One line traces the intellectual roots of project management research to various types of planning techniques. This approach presents project management as a specific problem-solving method with strong connotations to optimization theory and applied mathematics. The other dominant lineage traces the project management research to completely different intellectual roots. The process of managing projects is seen as a broader discipline where projects represent empirical entities. The biggest difference between these two main theoretical traditions is in the way they look at definition. One tradition traces its intellectual roots to the engineering science and applied mathematics where another tradition leans towards social sciences with special interest in the organizational and behavioral aspects of project organizations. One of the fundamental controversial topics in project management research is associated with the perspective to look at projects. For some researches projects are nothing else than a way of looking at industrial and organizational activity. Thus researching into projects is more a matter of looking to capture the unique, complex and time limited processes of interaction, organization and management. The alternative point of view is to stress the importance of providing knowledge and theories about the organization and management of projects. This approach emphasizes the importance of project dimension as a universal entity. Typically in a project context the universal elements are normally uniqueness, task complexity and time-limitedness. 14

19 Results It doesn t come as a surprise that the majority of modern organizations are relying on projects. The term project itself is often used to describe the observed pattern of organization or interaction. The important question to be answered is why firms and projects exist in the first place. Answering this question is not only the matter of philosophical discussion. The major role of theories and models is to enhance our understanding of the field or phenomena we re interested in. Despite the broad attention in the scientific literature there are only a few studies discussing the behavior of project organizations in theoretical terms. Partially this is due to the lack of available options. Many of models and techniques found in the project management field fail to explain or increase our understanding about the behavior of project organizations. The existing project-oriented literature does not explore thoroughly all the aspects of projects. Especially the difference between temporary and permanent-like organizations has not been discussed extensively. As a result many important questions have not been answered. How do people react on time pressure and control by deadlines and milestones? These sorts of questions have to be tackled in order to create new and evolve existing theories. Conclusions In the profit seeking business world organizations usually relies mostly on measurable metrics. This mindset inevitably translates also to the project management research. Areas like critical success factor are of particular interest. The downside of concentrating only on critical success factors is that it easily ignores the behavioral dimension of project organization. When thinking about the success criteria it is necessary to broader the traditional triple constraint model (cost, time and conformance to specifications). Elvis Okemou 15

20 The Strength and Weakness of Requirement Engineering (RE) Process A. Haron and S. Sahibuddin, in Proceedings of the 2nd International Conference on Computer Technology and Development (ICCTD 2010), pages 56-59, 2010 Background Requirements engineering is an important part of the software project development. The goal of RE is to understand the needs of the stakeholders and by being able to provide the software engineer with tools and techniques which help understanding the process better, in order to have a software that meets the client's needs. There is also a question as to why there is a need of RE in the developments of software projects, The need is that RE helps the developer to better understand before the actual development process begins, this helps in reducing the cost of rework in a software lifecycle. The RE process is a part of the software project management cycle, RE ensures the overall quality of each stage of the product development. In simple terms requirements are the specifications of the product, meaning they are the descriptions of how the product or the system should behave. This study tries to reduce the gap with comparison to the current requirements practices to the appropriate of requirement best practices. Results There is a Gap analysis made in order to identify the critical issues of the organization, when the analysis was made there were six components which were listed out. They were identified after the implementation of some software projects. They were divided into six components, therefore, managers, stakeholder, developer, business rules, business process and technology, thus making them all either inter related or directly related to each other. (p. 56) The first component is Managers: The main process of business is to deliver services to the public sector, in due course they have improved their services by creativity and innovation. The manager of the software project plans everything from the implementation to the layouts to the time frame of the project. The manager holds himself responsible for the requirements, release and the product life cycle. This also means that the success of the product depends on the skills and competence of the manager. This paves to the risks and success factors they need to take into consideration when facing challenges, some of them include defects, delays etc. (p. 57) The second component is Business Rules: when developing a project there are many things which need to be taken into account one such important factor when it comes to Business rules is to provide support for an organizations business strategy keeping in mind the business success. When there is an initiative taken to improve the service delivery there are some constraints in achieving the goals. The main constraint being the people and the management for approval. (p. 57) The third component is business process: The success of the software project depends on the business process we follow; they keep changing from time to time depending on the system application. This also determines the complexity of the project development. The projects which are most successful are those which have a excellent process and a clear team structure. When a stakeholder requests for a requirements change this aligns with the process change also this helps the requirements provider either a stakeholder or a customer to contract 16

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